"Sir, take a look, about two degrees south of Rigel!"
Rip found the constellation Orion and looked at bright Rigel. For a
moment he saw nothing; then, south of the star, he saw a thin, orange
line.
Nuclear drive cruisers didn't have exhausts of that color, and there was
only one rocket-drive ship around, so far as they knew.
Rip said softly, "Let's get our house in order, gang. Looks as if we're
going to get a visit from the Connies!"